Flash: Powertrain Control Module PCM Updates
Jeep technical service bulletin 1800721 for 2021 Jeep Grand Cherokee.
- Bulletin number
- 1800721
- Component
- Power train: automatic transmission: control module (TCM/PCM/tecm)
- Summary
- Flash: Powertrain Control Module PCM Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may comment on the following conditions: The RPM gauge in the center cluster is inoperative International Markets Only. Poor air conditioning performance. Air conditioning compressor will not stop cycling and the evaporator freezes up.
Owners of these vehicles have filed 61 complaints in the transmission category.
Vehicles covered
- Jeep Grand Cherokee 2021 2021
VIN decoder
See the problems and recalls for an exact car
Buying a used Jeep Grand Cherokee?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history